Mobily Telecom Company is the second-largest telecom company in Saudi Arabia. Mobily is the brand name used by the company for the services it provides to its customers. The telecommunication industry is growing and a large number of competitors are entering the market. So it is becoming of crucial importance for the company that it must develop strategies for retaining the best and professional employees so that the company can obtain a sustainable competitive advantage in the industry. In this study, the dependent variable is employee loyalty and the independent variables are Human Relations, Personal development, human resource practices, and competencies. A primary research approach is used for collecting data, and to collect data from 100 employees, a quantitative research approach is used. From this study, it was found that there was no impact of competencies, human relations, and personal development on employee loyalty with the organization, and only human resource management practices can directly impact employee loyalty.